The Leaning Tower of Pisa is one of the most famous structures in the world – not because of its gently rising series of arches, but because of its legendary tilt.
Constructed as the bell tower to accompany the cathedral, the tower began to shift on its foundations in 1178, before the architect, Bonanno Pisano, had completed the first three tiers.
Fortunately, the lean has now been halted, due to tricks with cables and counter-subsidence. The tower now leans on an angle of 4.1 meters (13 feet), rather than the previous 5 meters (16 feet).
It’s well worth paying the extra to climb the spiral stairs leading to the top of the Leaning Tower for views across Pisa. Make sure you book ahead as reservations are compulsory and numbers are limited.